# Error: Unsatisfiable requirements detected for package LinQuadOptInterface \[f8899e07\] help

**URL:** https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-package-linquadoptinterface-f8899e07-help/28241
**Category:** New to Julia
**Tags:** package
**Created:** [August 31, 2019, 4:05pm UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-package-linquadoptinterface-f8899e07-help/28241 "2019-08-31T16:05:20Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)
#### Post date: [August 31, 2019, 4:17pm UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-package-linquadoptinterface-f8899e07-help/28241/2 "2019-08-31T16:17:36Z")

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> [@N\_Mal](#):
>
> (not the full problem, the forum doesn’t let me because it exceed the number of users?)

@N_Mal, you need to quote your code with backticks (I edited your post to do this):

> [@PSA: how to quote code with backticks](https://discourse.julialang.org/t/psa-how-to-quote-code-with-backticks/7530):
>
> This is a short post on how to use backticks (` and ```) to quote code, so it is easy to read. This post can be linked to new users who are confused by this feature. Why By quoting your code, you get a monospaced font (which preserves indentation) and syntax highlighting. This makes it easier to read your code and help you. Displayed code looks like this: function displayed\_code(x::Int, y::Int) if x \< y println("x is smaller") else println("or not") end end Inline…

When you type an expression like `@variables` without quoting it, you are actually “pinging” a user named `variables`, just like where I mentioned your username above. The forum software prevents you from pinging too many users in a single post. If you quote the code, however, it knows that `@` is part of the code rather than a username reference.

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_[View the full topic](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-package-linquadoptinterface-f8899e07-help/28241)._